The Panasonic KX-TA824 is very good for home office phone systems. It provides additional security with the Door Phones. You can speak to a visitor from any Panasonic multi-line or cordless telephone in your home or poolside and allow them entry from that phone. If you have a gate, electric garage door opener or electric door release you can have complete control over the access to your home. You can also activate security lights with any phone. (requires electrician)